PHLT 8062 Week 8 Claims Synthesis Matrix Example

Course	PHLT 8062 Dissertation Seminar II
Week	Week 8
Paper type	Synthesis matrix
Length	About 860 words, 6 pages
Format	APA 7 student paper
School	Walden University
Program	PhD in Public Health
Updated	October 2026

Free sample paper for PHLT 8062 Week 8

Synthesis Matrix for the Hepatitis B Birth Dose Review: Five Claims Down the Side, Every Included Source Across the Top, Each Cell Marked Support, Contradiction or Silence, and a Column Explaining Why Sources Disagree

Student Name

Walden University

PHLT 8062: Dissertation Seminar II

Instructor Name

Month Day, Year

What this page is doingThe title describes the inversion of the evidence table, claims as rows rather than studies, which is the move that turns summaries into synthesis.

From Studies to Claims

Three weeks ago the evidence table listed each source once and recorded its attributes. That table answers the question "what does each study say?" A review must answer a different question: "what does the evidence say about each claim?" This matrix turns the table on its side. Five claims run down the left, every included source runs across the top, and each cell records whether the source supports the claim, contradicts it or is silent. A final column explains disagreements where they occur. Narrative synthesis guidance recommends this kind of tabulation as a way to explore relationships within and between studies before writing conclusions (Popay et al., 2006), and it follows naturally from the matrix method used for the evidence table (Garrard, 2017).

What this page is doingStating the shift in question, from what each study says to what the evidence says about each claim, explains why the matrix is built this way.

The Matrix

Table 1

Claims by Source: S = supports, C = contradicts, a dash = silent

Claim	NIS coverage report	Hospital policy survey	National guidance	Improvement report A	Improvement report B	Neighboring state evaluation	State program reports	Registry completeness study	Why sources differ \|
1 Birth dose trails the later doses of the series	S	-	-	-	-	-	-	-	Only national survey measures both \|
2 Coverage varies substantially among hospitals	-	S (policy variation)	-	S	S	S	-	-	Variation inferred indirectly from policies or single sites \|
3 Hospital systems such as order sets are associated with higher coverage	-	S	S	S	S	-	-	-	Guidance recommends; studies uncontrolled or weakly controlled \|
4 Changes in newborn vaccine supply are followed by lower coverage at small hospitals	-	-	-	-	-	S, short-lived	S (concern only)	-	One evaluation; program reports describe concern without data \|
5 Registries undercount birth doses actually given	-	-	-	C (chart and registry agreed in one hospital)	-	-	-	S	Agreement differs by hospital reporting practices \|

Note. Sources correspond to rows in the evidence table; composite sources represent kinds of reports in the composite review.

Reading the Matrix by Claim

Claim 1

Only the national survey addresses it, but it does so directly and with verified records (Hill et al., 2021). The claim is well supported at the national level and serves as background rather than a matter of dispute.

Claim 2

Four sources support variation among hospitals, but none measures it across many hospitals at once with a common measure. The hospital policy survey shows variation in written policies (Willis et al., 2010), not coverage, and the improvement reports each describe one or two hospitals. The neighboring state's evaluation comes closest, reporting coverage by hospital size. The claim is plausible and repeatedly suggested but not directly established, which is part of what the dissertation can add.

Claim 3

Support is broad but weak. National guidance recommends standing orders and order sets (Schillie et al., 2018), the policy survey links written policies to practice, and both improvement reports show rises after system changes. No source contradicts the claim. The weakness lies in design: the appraisal found that even the strongest report could not rule out preexisting trends or co-interventions. The review will present Claim 3 as consistently supported by weak evidence.

Claim 4

This is the dissertation's claim, and the matrix shows how thin its support is: one unpublished evaluation reporting a short-lived dip at small hospitals, and program reports that describe concern without measuring anything. Silence dominates the row. The review will present the claim as an open question with one suggestive finding.

Claim 5

Here the sources disagree. The registry completeness study found that some birth doses recorded in charts never reached the registry, while one improvement report found close agreement between chart and registry at its hospital. The final column offers an explanation: agreement likely depends on each hospital's reporting practices, such as automated electronic transmission versus manual entry. Rather than choosing one source over the other, the review will report the disagreement and its probable cause, and the dissertation will check registry completeness at its nine hospitals where possible.

What this page is doingTreating a contradiction as something to explain, rather than a tie to break, is the core of a synthesis that respects its sources.

What the Matrix Changes in the Review

The matrix reorganizes the review around claims rather than sources. It shows which claims can be stated confidently (Claim 1), which are consistently but weakly supported (Claim 3), which are suggested but not established (Claim 2), which remain open (Claim 4) and which are contested (Claim 5). It also reveals how many cells are silent. Silence is information: it marks where the evidence base ends, and the pattern of silence across Claims 2 and 4 points directly to the dissertation's contribution, hospital-level coverage measured consistently across many hospitals before and after a supply change.

Limits

The matrix simplifies. A single "S" can hide differences in strength, and the matrix records direction, not quality. For that reason, each cell is read alongside the appraisal judgments from the evidence table, and the final review will describe the strength of support in words rather than counting supporting sources, which can mislead when sources differ in quality (Popay et al., 2006).

References

Garrard, J. (2017). Health sciences literature review made easy: The matrix method (5th ed.). Jones & Bartlett Learning.

Hill, H. A., Yankey, D., Elam-Evans, L. D., Singleton, J. A., & Sterrett, N. (2021). Vaccination coverage by age 24 months among children born in 2017 and 2018: National Immunization Survey-Child, United States, 2018-2020. MMWR Morbidity and Mortality Weekly Report, 70(41), 1435-1440. https://doi.org/10.15585/mmwr.mm7041a1

Popay, J., Roberts, H., Sowden, A., Petticrew, M., Arai, L., Rodgers, M., Britten, N., Roen, K., & Duffy, S. (2006). Guidance on the conduct of narrative synthesis in systematic reviews. ESRC Methods Programme.

Schillie, S., Vellozzi, C., Reingold, A., Harris, A., Haber, P., Ward, J. W., & Nelson, N. P. (2018). Prevention of hepatitis B virus infection in the United States: Recommendations of the Advisory Committee on Immunization Practices. MMWR Recommendations and Reports, 67(1), 1-31. https://doi.org/10.15585/mmwr.rr6701a1

Willis, B. C., Wortley, P., Wang, S. A., Jacques-Carroll, L., & Zhang, F. (2010). Gaps in hospital policies and practices to prevent perinatal transmission of hepatitis B virus. Pediatrics, 125(4), 704-711. https://doi.org/10.1542/peds.2009-1831

What the PHLT 8062 Week 8 instructions ask for

The eighth assignment usually asks for a synthesis matrix whose rows are claims and whose columns are sources. Faculty expect the review's main claims listed as rows, sources as columns and each cell recording whether the source supports, contradicts or is silent on the claim. A column explaining disagreements, where they occur, is a mark of strong work, since contradictions often have identifiable causes such as different measures or settings. The discussion should read the matrix claim by claim, stating how well each is supported and where the evidence is silent, and should note that direction does not capture quality. Strong matrices treat silence as information about where the evidence ends. The matrix should draw on appraisal judgments made earlier and feed directly into the review chapter.

How this PHLT 8062 Week 8 example is built

The paper explains the shift from asking what each study says to asking what the evidence says about each claim, citing narrative synthesis guidance. A matrix lists five claims against eight sources with a column explaining disagreements. Subsections read each claim: national coverage trailing later doses is well supported; variation among hospitals is suggested indirectly; hospital systems are consistently but weakly supported; the supply claim rests on one evaluation and silence; and registry undercounting is contested, with a proposed explanation. A section explains how the matrix reorganizes the review and why the pattern of silence points to the dissertation. A limits section cautions that cells record direction, not strength. The matrix fits on one page.

PHLT 8062 Week 8 rubric: what earns full marks

Graders reward a matrix that turns studies into judgments about claims. Matrices that simply restate the evidence table, or record support without considering contradiction and silence, earn less. Credit goes to precise claims, accurate cell judgments, and a disagreement column that offers plausible explanations. Reading the matrix claim by claim, with strength described in words, shows synthesis rather than tallying. Recognizing silence as a finding, and using it to locate the dissertation's contribution, demonstrates the purpose of the exercise. Acknowledging that direction differs from quality, and linking cells to earlier appraisal judgments, shows methodological care. Accurate citation of synthesis guidance supports the approach.

PHLT 8062 Week 8 help from the desk

Synthesis matrices often become a second evidence table. Put your claims in the rows and your sources in the columns, and for each cell decide whether the source supports, contradicts or says nothing. When sources disagree, look for a reason such as different measures or settings. Read each row and describe its strength in words, not counts. Notice where silence clusters. Matrices for other reviews can follow the same claims-first layout. Link each cell to the appraisal judgment behind it so that a supporting mark from a weak study is not read as strong evidence. Place a short note under the matrix explaining your symbols and any composite sources, and keep the claims few enough to read in one view.

Get a PHLT 8062 Week 8 example written to your instructions

Forward your evidence table and the claims your review is trying to make, along with the Week 8 matrix prompt and rubric. The matrix turns claims into rows, marks support, contradiction and silence for each study, and explains every split before rating confidence. First matrix free, within 24 to 48 hours; its five claims rest on composite studies and prove nothing about real mandates.

More PHLT 8062 papers and PhD in Public Health samples

PHLT 8062 Week 8 questions, answered

How is a synthesis matrix different from an evidence table?

An evidence table describes each study; a synthesis matrix tests each claim. The example's Week 5 table had a row per study and fixed attributes as columns. The matrix turns that around, placing claims in rows and studies in columns, so a reader can see at once which claims are supported, contested or unexamined. Many reviews need both, and the matrix is usually where the chapter's paragraph structure comes from.

What if my studies all agree?

Then the matrix should show whether they agree for independent reasons. Studies sharing a data source, a method or a jurisdiction may agree because they share a weakness. The example's survey studies agree with each other and disagree with the records-based study, which is more informative than unanimity. If yours truly agree across different designs and settings, that consistency is itself a finding worth stating plainly.

Where can I find a free PHLT 8062 Week 8 sample paper?

This page carries the complete Week 8 synthesis matrix, testing five claims about newborn hepatitis B vaccination against every included source, with a column explaining disagreements.

How is a synthesis matrix different from an evidence table?

An evidence table describes each study; a synthesis matrix tests each claim against all the studies, showing which support it, which contradict it and which are silent.

What does silence in the matrix tell a reviewer?

Where many cells are silent, the evidence base ends. In the sample, silence clusters around hospital-level variation and supply changes, which is exactly where the dissertation contributes.